I am going to resurrect one of my first major problems that turned me onto this site when I was trying to get an IT Policy off my (yes you guessed it) 7100. It was my first device and had no idea of the security features. So I dug and dug and with the help from some very nice people I helped put together one of the first full posts (without a link to the policy.bin because of a promise I made to the person that gave it to me) on how to remove the IT Policy. Since then the link below has helped a number of people and the all knowing John Clark did credit me as one of the contributors.
Thanks to OS 4.3+ you no longer need this method since JL_CMDR or JavaLoader.exe can do it natively without losing any bluetooth functionality but it brings back memories and was very helpful and I am sure others are still using it until RIM and the carriers release 4.5 for all devices officially and all of the unfortunate souls that will never see anything close to 4.5 until they upgrade..
I hope I win the BlackBerry Bold...I would take the 8310 from Horizon as well....I am not picky!!!
http://www.blackberryforums.com/rim-...ve-policy.html